Molecular Dynamics Study of the Deformation Processes of Metallic Materials in Structural and Phase (Martensitic) Transformations
- Authors: Baimova Y.A.1, Dmitriev S.V.2,3, Kuranova N.N.1, Mulyukov R.R.2, Pushin A.V.1, Pushin V.G.1,4
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Affiliations:
- Mikheev Institute of Metal Physics, Ural Branch
- Institute for Metals Superplasticity Problems
- National Research Tomsk State University
- Ural Federal University
- Issue: Vol 119, No 6 (2018)
- Pages: 589-597
- Section: Structure, Phase Transformations, and Diffusion
- URL: https://journals.rcsi.science/0031-918X/article/view/167639
- DOI: https://doi.org/10.1134/S0031918X18060042
- ID: 167639
Cite item
Abstract
The application of the method of molecular dynamics based on the use of pair interatomic potentials has been discussed to study various deformation processes during structural and phase (martensitic) transformations in metallic single and polycrystals. It has been shown that the method of molecular dynamics in a two-dimensional model makes it possible to qualitatively analyze the processes of grain-boundary sliding and other mechanisms of plastic deformation in polycrystals. It is also an efficient tool for describing diffusionless martensitic transformations in metallic materials. As an example, the use of the method for simulating grain-boundary sliding in a polycrystal with nonequilibrium grain boundaries is presented and the mechanisms of overcoming an obstruction in the form of a protruding segment of a grain have been demonstrated at the atomic level. The application of this method for describing the dynamics and morphology of the thermoelastic martensitic transformation has been illustrated by the example of the titanium nickelide and manganese alloys.
About the authors
Yu. A. Baimova
Mikheev Institute of Metal Physics, Ural Branch
Author for correspondence.
Email: julia.a.baimova@gmail.com
Russian Federation, Ekaterinburg, 620108
S. V. Dmitriev
Institute for Metals Superplasticity Problems; National Research Tomsk State University
Email: julia.a.baimova@gmail.com
Russian Federation, Ufa, 450001; Tomsk, 634050
N. N. Kuranova
Mikheev Institute of Metal Physics, Ural Branch
Email: julia.a.baimova@gmail.com
Russian Federation, Ekaterinburg, 620108
R. R. Mulyukov
Institute for Metals Superplasticity Problems
Email: julia.a.baimova@gmail.com
Russian Federation, Ufa, 450001
A. V. Pushin
Mikheev Institute of Metal Physics, Ural Branch
Email: julia.a.baimova@gmail.com
Russian Federation, Ekaterinburg, 620108
V. G. Pushin
Mikheev Institute of Metal Physics, Ural Branch; Ural Federal University
Email: julia.a.baimova@gmail.com
Russian Federation, Ekaterinburg, 620108; Ekaterinburg, 620002